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The Aira-Tanzawa eruption happened approximately 22,000 years ago<ref>http://cat.inist.fr/?aModele=afficheN&cpsidt=15297790</ref><ref>J. Edward Kidder, Jr. "Himiko and Japan's Elusive Chiefdom of Yamatai." University of Hawaii Press, 2007. Page 112.</ref> in southern Kyushu.
[[Category:Natural Disasters]]
[[Category:Jomon Period]]
==External Links==
[http://www.edu.gunma-u.ac.jp/~hayakawa/volcanoes/asama/guide/Eloc2.html Aira-Tanzawa]